On my Leaf 2 the remaining requests are captive portal and ntp. You can configure them with adb, something like:
Code:
adb shell settings put global captive_portal_http_url "http://captiveportal.kuketz.de"
adb shell settings put global captive_portal_https_url "https://captiveportal.kuketz.de"
adb shell settings put global captive_portal_fallback_url "http://captiveportal.kuketz.de"
adb shell settings put global captive_portal_other_fallback_urls "http://captiveportal.kuketz.de"
adb shell settings put global ntp_server pool.ntp.org
adb shell settings put global ntp_server_2 pool.ntp.org